Window-jack.



A. P. ACUIN.

WINDOWJACK.

APPLICATION men APR.25. me.

Patented J uly 9, 1918.

/a z y INVENTOR Amzmqa P /7 (111')? A rramvsy AMANDO P. ACUIN, OFOAKLAND, CALIFORNIA.

W INDOW-J'ACK.

7 '0 all whom it may concern:

Be it known that I, -AMANDO P. Acorn, citizen of the United States,residing at 2209 Telegraph Ave, Oakland, in the county of Alameda andState of California, have invented certain new and useful Improvementsin WVindow-Jacks, ofwhich the following is a specification.

This invention relates to improvements in window cleaning jacks and hasfor its obj ect the construction of a small, light weight cage which maybe attached to the sill of a window and extend on the outside thereofand in which the cleaner may stand.

Another object of my invention is to so construct the device that thesame may be compactly folded when not in use.

With these and other objects in View the invention consists in the novelconstruction, combination and arrangement of parts herein illustratedand more specifically pointed out in the appended claims.

- Reference being had to the accompanying drawings forming a part ofthis specification,

Figure 1 is a view in perspective showing my improved device supportedby a window sill.

Fig. 2 is a view in plan showing the same in its folded position.

Denoting corresponding parts in the several views by the same numeralsof reference, my device is constructed of the base frame consisting ofthe longitudinal members 2 and 3 held in spaced relation by means of thecross member 4 and the various slats 5.

Extending centrally between members 2 and 3 is a safety frame comprisinga rail 8 from which extends the upright posts 9 connected I at the topby the cross bar 10. The rail 8 is square in section and spring 7 isadapted to contact with one of these square sides thus tending to holdthe frame composed of members 9 and 10, either in a vertical position asshown in Fig. 1, or in a folded horizontal position as shown in Fig. 2.

On the inner ends of 2 and 3 are pivotally secured posts 12, to the topof which are hinged the horizontal pieces 13, as indicated at 25, whichhorizontal pieces, in use, are adapted to extend over the window sill asshown in Fig. 1. Slidably connected to thesemembers are other piecesSpecification of Letters Patent.

Patented July 9, 1918.

Application filed April 25, 1916. Serial No. 93,382.

14' having the depending ends 15, terminating in hooks 16 adapted toengage under the inner ledge of the window sill. Member 14 is slotted asshown at 1'7, and a bolt 26 in member 13 extends through the slot 17 ofmember 14 to permit horizontal adjustment. A strap 18 is attached to theouter end of member 14 and encircles the member 13 thus cooperating withbolt 26 to hold the two members in parallel relation.

To the outer end of each of the members 2 and 3 is secured a bar orflexible cable 20, the other end of which engages an eye or hook 21adjacent the upper end of post 12. I also provide rods or flexiblecables 22 extending from the upper ends of member 9 to the upper end ofpost 12.

Having thus described my invention I use it as follows The body portionof device is placed on the outside of the window and the members 14 and13 are so adjusted that the hook portion 16 closely engages under theledge of the window sill. The nuts 24 on bolts 26 are then screwed tightpreventing longitudinal movement between these members. Thus the personcleaning the window may stand on the strips 5 and his weight is borne bythe post 12 and the guide members 20. The frame 9 with the cables 22prevent him from falling from the sides of the platform thus devised.

When the device is not in use the members 20 and 22 are disengaged fromthe respective holding means which allows the safety frame to be foldedflat on the base frame. The device may then be unfastened from thewindow sill and the post 12 can be folded backwardly, parallel withmembers 2 and 3 and the parts 13 which if they were not hinged to thepost 12 would project upwardly, are then folded transversely inward andhorizontal with the top of member 9, more particularly shown in Fig. 2.I provide the members 2 and 3 as well as the hooks 16 with tips 23 ofsoft material such as rubber.

While I have shown the preferred form and embodiment of my invention, itwill be understood that minor changes may be made in detail and designwithout departing from the scope of the claims.

I claim as new and wish to cover by Letters Patent 1. A foldable windowcleanin jack comprising a base frame, posts pivotally attached to thesides of said frame near the inner end thereof, arms attached to thetops of said posts and shaped to extend over a Window sill, a guardframe pivoted to said base frame at the outer end thereof, diagonalbrace members extending from the topsof said posts to the outer ends ofsaid base frame, and means for yieldably holding the guard frame ineither open or closed position.

2. A WilldOW cleaning jack comprising a base frame, having horizontalside members, posts pivotally attached to said side members, extensiblearms hinged on the upper ends of said posts, a guard frame pivotallymounted between said horizontal s1de members at the end opposite saidposts, diagonal brace members extending from the top of said posts tothe other end of said side mem bers, and spring means adapted. to holdsaid guard frame either in a vertical or a horizintal position.

In testimony whereof I aflix. my signature.

AMANDO P. AOUIN.

Copies of this patent may be obtained for five cents each, by addressingthe Gommissionerof Patents,

- Washington, D. G.

